Loading machine



H. H. BARBER July 12, 1932.

LOADING MACHINE Filed May 10. 1950 2 Sheets-Sheet l div/TEFL July 12,1932. BARBER 1,866,789

LOADING MACHINE Filed May 10, 1930 2. Sheets-Sheet 2 Patented July 121932 UNITED STATES HARRY H. BARBER, OF AURORA, ILLINOIS,

ASSIGNOR TO BARBER-GREENE COMPANY,

A CORPORATION OF ILLINOIS LOADING MACHINE Application filed May 10,

This invention relates to a loading machine of that type involving aboom having an endless bucket chain thereon with material feedingelement-s at the lower end of the boom for feeding material to thebuckets. The invention concerns itself primarily with means forcontrolling the feeding elements and assuring that the same alwaysoccupy a vertical position irrespective of the movements of the boom.

The invention comprises the novel structure and combination of partshereinafter described and more particularly pointed out and defined inthe appended claims.

In the accompan ing drawings, which illustrate a preferre form of thisinvention and in which similar reference numerals refer to similarfeatures in the different views:

Figure 1 is a fragmentary side elevational View of a loading machineembodying thls invention.

Figure 2 is a fragmentary top plan view of the feeding elements andadjacent parts with the boom removed.

Figure 3 is a part sectional, part plan view of a connecting bar forconnecting the boom with the vehicle frame.

Figure 4 is a fragmentary plan View through another connecting rod forconnecting the feeding elements with the vehlcle frame.

The machine to which this invention is applied consists of a vehicleframe which is generally designated by the reference numeral 1 and issupported for traveling movement. This frame supports suitable tracks 2for rollers 3 which are carried by the boom whereby a floatingarrangement is secured between the boom and frame. The boom, which isgenerally designated by the reference numeral 4, sustains an endlessbucket chain 5 which travels therearound, as is usual in the art. Thematerial is adapted to be fed to the buckets by means of a pair offeeding discs 6 which have vertical shafts extending into gear casings7. Each gear casing 7 has a stub shaft 8 (Figure 2) projectingtherefrom, and sprocket gears 9 are carried by the ends of these shaftsfor operating the conveyor chain. It might be men- Serial No. 451,226.

tioned that the boom is stub shafts 8.

.fThe gear casing of each disc 6 is provided with a casting 10, as shownin Figure 2. These gear casings are also provided with castings 11 whichare spaced from the casting 10. 'A rod 12 is supported by the castings11 for a purpose that will presently appear. A pair of radius rods 13are pivoted to the rods 12 at their forward ends. The rear ends of theradius rods 13 are pivoted to a shaft 14 which is secured to the vehicleframe. Above the shaft 14 there are a pair of angle clips 15 which aresecured to the frame of the vehicle, as shown more clearly in F igure 2.A radius rod 16 is pivoted at its rear end upon each of the angle clips15. The forward ends of the radius rods 16 are provided with adjustableor extensible hooks 17 which are adapted to hook over suitable pins 18secured upon the casting 10. The rods 16 are parallel with the radiusrods 13 whereby a parallel motion is obtained and, as these rods arepivoted to the feeding elements for the conveyor, it is obvious that, asthe boom is raised and lowered, the feeding elements are constrained totravel in a true vertical direction, with the result that, whenever theboom is lowered, the axis of the feeding discs will be verticallypositioned. It will be noted that the conveyor boom is mounted to rollupon the bearings 2 and will roll upon these hearings during the raisingor lowering movements thereof. However, none of these motions will causeany tilting movement of the feeding elements on account of the parallelmotion rods or links that connect the feeding elements with the vehicleframe. When it is desired to elevate the boom to horizontal position,the rods 13 and 16 can readily be released at their forward ends. Theboom, however, is adapted to be elevated a predetermined extent withoutreleasing the rods 13 and 16, as is shown in dotted lines in Figure 1,and, in such dotted line position, the machine may readily be movedabout in a yard or the like.

I am aware that many changes may be made and numerous details ofconstruction may be varied through a wide range without pivoted uponthese departing from the principles of this invention, and I, therefore,do not purpose limiting the patent granted hereon otherwise thannecessitated by the prior art.

I claim as my invention:

1. In a loading machine comprising a frame, a boom supported upon saidframe, horizontal feeding disks having vertical axis attached to saidboom, vertically spaced bearings associated with each feeding disk andparallel arms pivoted to said frame and to said bearings, said armsbeing releasable whereby said boom may be elevated to horizontalposition.

2. In a loading machine comprising a frame, a boom fio'atingly mountedupon said frame, horizontal feeding members having vertical axispivotally mounted upon the lower end of said boom, and a pair ofparallel bars pivotally connected to said frame and to each feedingelement'for maintaining the axis of said feeding elements in verticalposition during the raising and lowering of the boom.

3. In a loading machine including a frame,a boom fioatingly mounted uponsaid frame, feeding elements pivotally mounted upon said boom and a pairof parallel bars pivoted to said frame and pivotally connected to eachfeeding element for maintaining said feeding elements'in a predeterminedposition during all movements of the boom.

4. In a loading machine comprising a frame, a boom mounted thereon fortilting and shifting movements, a bucket conveyor carried by said boom,feeding elements having vertical axis pivotally connected to said boomfor supplying material to said bucket conveyor, and a pair of parallellinks pivoted to the frame and pivotally connected to each feedingelement for maintaining said elements in a predetermined position duringmovements of the boom.

In testimony whereof I have hereunto subscribed my name at Aurora, KaneCounty,

Illinois.

HARRY H. BARBER.

